Vitamin D food sources
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Main Natural Food Sources of Vitamin D
Vitamin D is found in only a few foods naturally. The richest natural sources are certain types of fish (such as salmon, mackerel, and sardines), fish liver oils, and some mushrooms, especially those exposed to ultraviolet (UV) light. Fish liver oils can contain very high amounts of vitamin D, while many fish provide between 5–25 µg per 100 grams. UV-exposed mushrooms can provide between 21–59 µg per 100 grams, and some species like reindeer lichen are also high in vitamin D. Other animal-derived foods such as cheese, beef liver, and eggs contain smaller amounts (1.3–2.9 µg per 100 grams) 1234+2 MORE.
Vitamin D in Animal Products
Animal foods are the main natural source of vitamin D3 (cholecalciferol). Fish and fish liver are the highest, followed by offal (organ meats), with lower levels in muscle meat and egg yolks. Dairy products, unless fortified, are generally low in vitamin D, except for butter due to its fat content. Meat and eggs can be biofortified to increase their vitamin D content, but naturally, their levels are modest 35.
Plant-Based and Vegan Sources
Mushrooms are unique as a non-animal, unfortified food that can provide significant vitamin D2 (ergocalciferol) when exposed to UV light. Regular consumption of UV-exposed mushrooms can help meet daily vitamin D needs, making them an important option for vegans and vegetarians 46.
Fortified Foods as Dietary Sources
Because few foods naturally contain enough vitamin D, many countries fortify foods such as milk, yogurt, fat spreads, orange juice, breakfast cereals, and plant-based beverages with vitamin D2 or D3. Fortified foods are a practical way to help populations meet recommended vitamin D intakes, especially in regions with limited sunlight 15810.
Vitamin D Supplements
Dietary supplements are often recommended because it is difficult to get enough vitamin D from food alone. Supplement use has increased in some populations, helping to reduce the prevalence of vitamin D deficiency, especially where natural and fortified food sources are limited or not consumed in sufficient quantities 1710.
Conclusion
Natural food sources of vitamin D are limited, with fatty fish, fish liver oils, and UV-exposed mushrooms being the most significant. Animal products like eggs and offal provide smaller amounts, while most plant foods are poor sources unless specially treated. Fortified foods and supplements play a crucial role in helping people achieve adequate vitamin D intake, especially in populations with low sun exposure or dietary restrictions 1234+6 MORE.
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Sources of vitamin D for humans.
Vitamin D can be obtained through sun exposure, dietary sources, and supplements, with fortified foods and certain fish, mushrooms, and lichen being rich sources.
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